Extension-table.



D. F. OLIVER.

EXTENSION TABLE.

APPLIcA'rIoN FILED 00T. 27. 1911. nmmwnn Nov. 17. 1914.

WIT/VESSES 1HE NoRR/s PEIERS CQ. PHDTa-LITHO., WAIHINGTUN. D. C.

D. E. OLIVER.

EXTENSION TABLE.

APPLIGATION FILED 00T. 27,1911. RENBWBD 11017.17. 1914.

1,134,000. Patented Mar. 30, 1915.

2 SHEETS-SHEET 2.

IVI/ENTOR rHE NaRRls PETERS C0.4 PHOTO-LITHO.. WASHINGTON, D. f

Eso

DOCTOR FRANKLIN OLIVER, 0F OAKLAND, CALIFORNIA.

EXTENSION-TABLE.

Specification of Letters Patent.

Patented Mar. 30, 1915.

Application led October 27, 1911, Serial No. 657,015. Renewed November17, 1914. Serial No. 872,652.

To @ZZ whom t may concern.'

Be it known that I, DOCTOR FRANKLIN OLIVER, a citizen of the UnitedStates, and a resident of Oakland, in the county of Alameda and State ofCalifornia, have invented a new and Improved Extension-Table, of whichthe following is a full, clear, and exact description.

The object of the invention is to provide a new and improved extensiontable having slidable end leaves, and extension leaves at the middle ofthe table and adapted when not in use to be folded within the table rim,the arrangement permitting of readily moving the extension leaves intoextended position flush with the end leaves.

For the purpose mentioned, use is made of extension leaves adapted tomove transversely into extended or folded positions and provided withpivots engaging fixedtransverse guideways extending in oppositedirections to permit of swinging the extension leaves on their pivotsand pushing the same into positions one above the other and both belowthe table top.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure l -is a plan View of the extension table with the extensionleaves in active position; Fig. 2 is a like view of the same showing theend leaves moved outward prior to moving the extension leaves intofolded position; Fig. 3 is a plan view of the extension table with theextension leaves in folded position; Fig. 4 is a sectional sideelevation of the extension table on the line 4 4 of Fig. l; Fig. 5 is across section of the same on the line 5-5 of Fig. 1; and Fig. 6 is anenlarged plan view of one of the pivots.

The frame A of the extension table is mounted on a suitable leg or legsB, and on the said frame A are fixed longitudinallyextending slideyguideways C engaged by slides D. D and D Dsecured to the under side ofthe end leaves E and E to permit of moving the end leaves E, E outwardinto an extended position, as shown in Figs. l, 2 and 4, or inward intoa closed position, as shown in Fig. 3. rIhe detail construction of theguideways C and the slides D, D is` similar to the ones used inextension tables as now constructed, so that further description of thesame is not deemed necessary,v

Extension leaves F, F are adapted to fit between the end leaves E and Ewhenever 1t is desired to extend the table, or the said extension leavesF, F are moved tra-nsversely into folded position immediately above theframe A and below the end leaves E, E when the latter are in the closedposition shown in Fig. 3. For the purpose mentioned the extension leavesF, F are provided on the under surface at the sides withlongitudinally-extending pivots G, Cr engaging pairs of transverseguideways H, I-I, preferably in the form of grooves formed in theopposite inner faces of transversely-extending rails I attached to thetop of the frame A of the table. The guideways I-I and H are inclined inopposite directions, as plainly indicated in Fig. 5, and the lower endsof the guideways H are on a lower level than the lower ends of theguideways H, which latter are provided at their upper ends withhorizontal extensions H2, as plainly shown in Fig. 5. By reference toFigs. 2 and 4, it will be noticed that the guideways H and H arearranged in different vertical planes, that is, the guideways H aresomewhat deeper than the guideways H and the upper ends of the latterterminate in the guideways H at 0r near the junction of the horizontalportions H2 with the inclined part of the guideways H. Now by thearrangement described. the extension leaves F and F can be tilted ontheir pivots Cr, Cr and pushed transversely so as to cause the pivots Gand Cr to travel in the guideways H and H. By having the horizontalextensions H2 on the guideways H, the extension leaf F can be drawnoutwardlv in a transverse direction so as to unlock the adjacent innertongue and groove edges of the extension leaves F and F see dotted linesin Fig. 5l, to allow of bringing the extension leaf F into the positionshown in dotted lines prior to pushing the extension leaf F downwardinto a lowermost or a folded position immediately on top of the frame A.After the extension leaf F is moved into a folded position as described,the extension leaf is pushed inward so that its pivots G travel alongthe horizontal portions H? of the guideways H to lfinally travel downthe latter to allow of folding the extension leaf F on top of theextension leaf F. and below the level of the end leaves E and E. Thusafter the extension leaves F and F have been folded the endleaves E andE are pushed toward each other into a closed position, as shown in Fig.3, to cover` up the extension leavesFand F. Vhen it is desired to extendthe table, the end leaves E and E are pulled apart, and then the ex-.

tension leaf F is drawn upward and outward to; thev position shown indotted,V linesin Fig. 5, to permit .of drawing out the other extensionleaf F until the extension V'-leaf- Ff is in raised position, and thenthe extension leaf-Ffis pushed Atoward the extension leafl Ftolinterlock the opposite edges by their interlocking,tongueand groove.In practice, the end leaves E and E are pushed out fartherthan the widthof the extension leaves F, F" (see Fig. 2), soasto permit ofconveniently manipulating lthe extension leaves FandF4 when foldingvthesame or extending the same as above described. After the leaveslFIand-Fiare in'extended position, the end leavesFvand E Vare pushed towardeach other until theirv inner. edgesy abut against the sidev edges ofthe extension leaves Fand Ff, as Yshown in Figs.` 1 andt.

Each ofy thex pivots G ,and G,is preferably formed of asingle pieceof-gmetal' having an attaching iatiportion Gzfastenedby screws or othermeans to the under side of the corresponding extension leaf F or F",-

and the flatl portion G2 terminates in a til-- bular shank G? providedat its end with a headGt, the shank G3 and the head GA1 fit,-A ting theCorrespondingly-shaped groove formed inthe guideway' H or H. Each pivotYG'is also provided v'with a keeperV G5 in the form ofan opening formedat the bent portion G6 connecting the flat portion Giwith'the tubular,portion G3, and 'the said keeper G5 is adapted to beengaged -byr a pinJ secured to the under sideof thecor-VA responding leaf EY or E., Byreference to Fig.r`2 -it will be `seen that the pins J project beyondthe; inner Aedges ofthe end `leaves andare in alinement with thecorrespond-v ing pivots G, `2G so that when the end leavesAV ELF/*aremoved into closed position attireV time the extension leaves Fand Fg arein raised and extended position, then Vthe said pins J tenter thekeepersl G5` thus interlocking the end leaves E land E with th e' ex` ltension leaves F, and F, to 'securely'I holdA the end leaves and ftheextension "leaves firmly inv extendedand flush positiononeV relative tothe other, as willbe readilyunderst'ood by reference tojFigs.` 1 and 4.Y

The extension table shownand Ldescribed is very simple, and, durablev inconstruction and composed of comparatively' few parts,

notliable easily Yto get out of order.

v vHaving thus described my invention, I

claim as new and desire to secure'by.l Letters Patentfzl. An extensiontable comprising a table frame and leaves 'slidably mounted on the saidftable' jf frame to slide toward #en -,from

each other 'in -'a lengthwise'j direction, 1 pai-rs oftransverseguideways fixed on the tablei frame, and inclined in 4opposite'directions, the said guideways being of different depth, extensionleaves Vadapted to move transversely into extended position between thelend leaves .and flush therewith Yorintoa eachother in a lengthwisedirection, pairs" of transverse guideways `fixed on the table4 frame andinclinedl in opposite directions,` one pair 'of guideways beingarrangedlinY a dierent vertical plane and terminating.

at: a -lowervlevel than the Aother 4guid'e'ways,

the 'said guideways being of different depth,

extension leaves adapted-to move trans-y versely into extendedpositionlbetweenthe end leaves and flush therewithor into va foldedposition one above Ithe otherand both below the-end leaves,.andvpivots-on the sides of the said extension leaves and of dif-l ferentllengths for engaging the said guide ways;V of corresponding depth. V d

3. An extension table,comprising a table frame and leaves slidablymounted -on ythe saidtable frame` to slide toward or vfromA each otherina lengthwise direction, pairs of transverse guideways--fixed on, thetabl'elil; f frame and vinclined in opposite directions, the guidewaysofA onepair having'ahori--A Zontal 'outward extension beginningapproximately atvthe upper 'ends of the guide# ways of the other pair of'guideways,.-and

the said guideways of lonepair beingof a adapted to move transverselyinto extended position between the end leaves and "Hush therewith orinto a folded position one above the other and both below the endlleaves, and pivots k on the sides of the said=exten sion leaves and,of'different lengths -for .en-1

easing the'said guideways ofcorresponding depth.v Y

4. MAn extension table, comprising -aY-.table frame, end leavesslid'ably mounted on theY said table, frame and provided with 'retain-lvgreater vdepth than the yguideways 'of' the,V 'Y other pair oflguideways, 'extensionsleaves' ing pins projecting longitudinally@beyond f the inner.Y opposite Vedges-lof the-end leaves,

pairsk of transverse` Vguidewiays ,v fixed'. on ;the tabllegframe,extensionfleaves adapted .lto-

move transversely into extended "position, betweenthe end le'avesandflush therewith, and pivotsV on .the isides of :the extension leavesvand engaging .thesaid guideways, the saidf :pivots having keepers for vengagement byrvthesaid retaining pins atthetimezthe;

parts Vare in an extendedpositionf.r Y Y 5.ex-tension-table,compr1s1ng.1a :table frame, end leaves slidably mountedon the said table frame and provided with retaining pins projectinglongitudinally beyond the inner opposite edges of the end leaves, pairsof transverse guideways Xed on the table frame, extension leaves adaptedto move transversely into extended position between the end leaves andflush therewith, and pivots each formed of a single piece of metalhaving an attaching flat portion secured to the under side of thecorresponding extension leaf, the flat portion connecting by a bentportion with a tubular shank hav- Copies of this patent may be obtainedfor ve ing a head, the shank and head engaging the said guideways andthe said bent portion having an opening forming a keeper in alinementwith and adapted to be engaged by a corresponding retaining pin at thetime the parts are in extended position. In testimony whereof I havesigned my name to this specification in the presence of two subscribingwitnesses.

DOCTOR FRANKLIN OLIVER. Witnesses:

THEO. G. HOSTER, I. 131111.11 D. RoLLHAUs.

cents each, by addressing the Commissioner of Patents.

Washington, D. C.

